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Rear piston appears slightly melted. What to do about it?
I used to use Nomacast and similar N-55-N99 rods for welding cast iron, but I switched to an inconel rod from Aircraft Spruce a couple years back and couldn't be more impressed by this stiuff. It's $200/Lb but seems to flow into the casting porosity almost like a braze. That said, if it were... -
Rear piston appears slightly melted. What to do about it?
Sorry, I was thinking about the big drops of 1/2"-1" plexi I had sitting around (actually, I think it's mostly lexan) when I suggested that material. Aluminum or steel plate is probably more common in people's scrap piles... from, say the center drops out of MRAP wheel adapters. :-) -
Rear piston appears slightly melted. What to do about it?
I wouldn't worry about the integrity of the piston, but I would feel better knowing the rings hadn't lost some tension. I wonder if you would benefit from making a leak-down tester? Jjust a plate of plexi or anything flat, punch a couple holes so you can bolt it down (use an o-ring to seal) and...